linaro_qemu: fix provide,requires,build_requires.

* disable stack protector.

app-emulation/linaro_qemu/patches/qemu-2.0.0.patchset

@@ -173,3 +173,34 @@ index 4febfe9..5579646 100644
 -- 
 1.8.3.4
 
+From 1df13c3934df011fe829d2e9b9c39bc2a809cffa Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Duval?= <jerome.duval@gmail.com>
+Date: Sun, 4 Dec 2016 18:06:30 +0100
+Subject: [PATCH] disable stack-protector.
+
+---
+ configure | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/configure b/configure
+index f997c1c..e01b3b7 100755
+--- a/configure
++++ b/configure
+@@ -1297,10 +1297,10 @@ for flag in $gcc_flags; do
+     fi
+ done
+ 
+-if compile_prog "-Werror -fstack-protector-all" "" ; then
+-    QEMU_CFLAGS="$QEMU_CFLAGS -fstack-protector-all"
+-    LIBTOOLFLAGS="$LIBTOOLFLAGS -Wc,-fstack-protector-all"
+-fi
++#if compile_prog "-Werror -fstack-protector-all" "" ; then
++#   QEMU_CFLAGS="$QEMU_CFLAGS -fstack-protector-all"
++#    LIBTOOLFLAGS="$LIBTOOLFLAGS -Wc,-fstack-protector-all"
++#fi
+ 
+ # Workaround for http://gcc.gnu.org/PR55489.  Happens with -fPIE/-fPIC and
+ # large functions that use global variables.  The bug is in all releases of
+-- 
+2.7.4
+